Engineering:Jacobs Ladder (exercise machine)
The Jacobs Ladder is an exercise machine consisting of a runged ladder angled at 40 degrees. It is non-motorized, and thus self-paced.[1] The machine was invented by Steve Nichols who had injured his knees and back, and wanted to do a full-body workout that didn't put excessive stress on those injured body parts.[2] 5–10 minutes is considered a beginner duration, 10–20 for moderate, and 20–30 for an advanced level.[1] The Jacobs Ladder works out both the lower and upper body, and it is a favorite among groups such as United States Army Rangers, United States Navy SEALs, and The Biggest Loser contestants.[2] The main muscles activated in the exercise are the quads, glutes, shoulders, and lats.[3] Research from Louisiana State University has concluded that compared to a treadmill, the Jacobs Ladder allows a person to work out harder while expending less effort.[4] Due to the pressure applied on the inner abdominal muscles, the exercise is generally considered unsafe for pregnant women, especially after the 16th week of pregnancy.[5]
References
- ↑ 1.0 1.1 Erickson, Kerry (March 25, 2016). "Jacobs Ladder". The Times of Northwest Indiana. https://www.nwitimes.com/niche/get-healthy/jacobs-ladder/article_0e76e76d-a1aa-5bfe-90aa-c4619988e8cc.html.
- ↑ 2.0 2.1 Internicola, Dorene (October 8, 2012). "Jacobs Ladder climbers reap tough fitness rewards". Reuters. https://www.reuters.com/article/us-fitness-jacobsladder/jacobs-ladder-climbers-reap-tough-fitness-rewards-idUKBRE89709020121008/.
- ↑ Appleton, Talene; Pastuch, Sean (September 3, 2023). "The 8 Best Stair Climbers for Your Home Gym, According to Certified Trainers". Men's Health. https://www.menshealth.com/fitness/g44930619/best-stair-climber/#product-c3883785-433b-4aab-a100-90888f93eb4c. Retrieved December 3, 2023.
- ↑ "Work Smarter. Reaping the Benefits of the Jacobs Ladder". Columbia Association. April 1, 2021. https://columbiaassociation.org/gyms-fitness/why-you-should-add-the-jacobs-ladder-to-your-workout-routine/#:~:text=Research%20at%20Louisiana%20State%20University,less%20stressful%20on%20your%20joints..
- ↑ Stricker, Elizabeth (September 11, 2023). "Sports and Exercise in Pregnancy: Everything You Need To Know". Healthnews. https://healthnews.com/family-health/pregnancy/sports-and-exercise-in-pregnancy-everything-you-need-to-know/.
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